Phosphine-catalyzed annulation of ethyl (arylimino)acetates: synthesis of highly functionalized oxoimidazolidines.
This paper describes an unexpected and novel nucleophilic phosphine-catalyzed annulation of ethyl (arylimino)acetates to give polysubstituted oxoimidazolidine derivatives in moderate to good yields from simple and easily available starting materials under mild conditions. In this reaction, the addition of methyl vinyl ketone (MVK) is essential to induce the formation of oxoimidazolidines.
Ma
Guang-Ning
GN
School of Chemistry & Molecular Engineering, East China University of Science and Technology, Laboratory for Advanced Materials and Institute of Fine Chemicals, 130 Mei Long Road, Shanghai 200237, China.
Wang
Fei-Jun
FJ
Gao
Jun
J
Shi
Min
M
D000085:Acetates / Q000737:chemistry*; D002384:Catalysis; D048289:Imidazolidines / Q000138:chemical synthesis*; D010720:Phosphines / Q000737:chemistry*; D013696:Temperature
D000085:Acetates; D048289:Imidazolidines; D010720:Phosphines; C044646:phosphine